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1·Another term that is often used in this context is delta, which describes a difference visible in a model compare-merge editor.

环境中另一个经常使用的术语是delta，它描述了模型比较-合并编辑器中可见的差异性。

2·Now it becomes obvious that the edges of the light 'foot' merge with the light bars, and are only visible when they traverse the dark bars.

现在，它变得明显，光的'脚'的边缘融入灯条，并且仅可见当他们穿过黑暗的酒吧。